2-Methyl-3-butyn-2-ol
Also known as: 3-Methyl butynol, 2-Methylbutyn-3-ol-2, 2-methyl-2-hydroxy-3-butyne, 2-methylbut-3-yn-2-ol, 3-Butyn-2-ol, 2-methyl-, AB-32, Iso-t-pentinol
2-Methyl-3-butyn-2-ol (CAS 115-19-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H8O and a molecular weight of 84.116 g/mol. Key properties include a melting point of 3 °C, a boiling point of 104.2±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 25.0±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 115-19-5
- Jingsj CID
- J-1992694-4
- Molecular Formula
- C5H8O
- Molecular Weight
- 84.116 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 3 °C |
|---|---|
| Boiling Point | 104.2±8.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 25.0±0.0 °C |
| Exact Mass | 84.057518 |
| PSA | 20.23000 |
| LogP | 0.32 |
| Vapor Pressure | 17.2±0.4 mmHg at 25°C |
| Refractive Index | 1.444 |
| Additional Property | miscible |
Customs & Trade Information
| HS Code | 29052990 |
|---|
Frequently Asked Questions
What is the CAS number of 2-Methyl-3-butyn-2-ol?
The CAS number of 2-Methyl-3-butyn-2-ol is 115-19-5.
What are the molecular formula and molecular weight of 2-Methyl-3-butyn-2-ol?
2-Methyl-3-butyn-2-ol has molecular formula C5H8O and molecular weight 84.116 g/mol.
What are the upstream and downstream products of 2-Methyl-3-butyn-2-ol?
For 2-Methyl-3-butyn-2-ol, Upstream Products: Acetylene, 2-Methyl-1-propanol, Ethynylmagnesium bromide; Downstream Products: 4-methylpent-2-yne-1,4-diol, 2-Butyne-1,4-diol, 1H-Tridecafluorohexane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methyl-3-butyn-2-ol (CAS 115-19-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992694-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.